1968255 has 24 divisors (see below), whose sum is σ = 3444480. Its totient is φ = 1039680.

The previous prime is 1968251. The next prime is 1968257. The reversal of 1968255 is 5528691.

It is a happy number.

It is not a de Polignac number, because 1968255 - 2² = 1968251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8481 + ... + 8709.

It is an arithmetic number, because the mean of its divisors is an integer number (143520).

2^1968255 is an apocalyptic number.

1968255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1968255 is a deficient number, since it is larger than the sum of its proper divisors (1476225).

1968255 is a wasteful number, since it uses less digits than its factorization.

1968255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 428 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1968255 is about 1402.9451165316. The cubic root of 1968255 is about 125.3219434408.

It can be divided in two parts, 1 and 968255, that added together give a square (968256 = 984²).

The spelling of 1968255 in words is "one million, nine hundred sixty-eight thousand, two hundred fifty-five".